397 CDUS41 KLWX 102131 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 531 PM EDT FRI APR 10 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 10 2020... VALID TODAY AS OF 0500 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1981 TO 2010 CLIMATE RECORD PERIOD: 1960 TO 2020 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 51 3:28 PM 89 2013 65 -14 70 MINIMUM 40 5:52 AM 19 1985 41 -1 43 AVERAGE 46 53 -7 57 PRECIPITATION (IN) TODAY 0.00 0.84 1983 0.12 -0.12 0.00 MONTH TO DATE 0.48 1.21 -0.73 0.38 SINCE MAR 1 2.47 4.59 -2.12 4.93 SINCE JAN 1 9.04 10.01 -0.97 12.39 SNOWFALL (IN) TODAY 0.0 T 1973 0.0 0.0 0.0 1996 MONTH TO DATE 0.0 0.2 -0.2 0.0 SINCE MAR 1 T 3.0 -3.0 1.6 SINCE JUL 1 2.9 21.9 -19.0 26.5 SNOW DEPTH 0 DEGREE DAYS HEATING TODAY 19 13 6 8 MONTH TO DATE 100 142 -42 122 SINCE MAR 1 548 789 -241 806 SINCE JUL 1 3692 4379 -687 4311 COOLING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 8 SINCE MAR 1 3 3 0 8 SINCE JAN 1 3 3 0 8 ................................................................... WIND (MPH) HIGHEST WIND SPEED 39 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 21.8 SKY COVER AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 43 4:00 AM LOWEST 33 4:00 PM AVERAGE 38 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 65 87 1977 MINIMUM TEMPERATURE (F) 41 25 1960 1970 1971 SUNRISE AND SUNSET APRIL 10 2020.........SUNRISE 6:40 AM EDT SUNSET 7:43 PM EDT APRIL 11 2020.........SUNRISE 6:38 AM EDT SUNSET 7:44 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$